The defensive tackle was surprisingly released by Chicago last week, but details that emerged Friday morning clearly explain the thinking behind the decision.

According to the police report, obtained by the Chicago Tribune, Bears staffers told cops an enraged Ratliff said “he felt like killing everybody in the building,” screamed “I am the devil” and said he “wished staff member’s children would die.”

Ratliff showed up at the team’s Lake Forest, Ill., facility on Oct. 21 “in no condition to practice,” according to the Tribune. He was sent home, but returned when he found out he was cut by the team. After his ranting return, Bears director of safety and security John Tarpey called the police.

“We’d like to have an officer come over,” Tarpey calmly told the woman who answered the call. “We had an issue with a player. He left pretty upset, came back and then left again upset. We’re a little concerned that he may come back again. So we’d like to have an officer over here, talk to him about it and see what we can do here.”

In addition, the Bears took the precaution of notifying the Cowboys of Ratliff’s release, according to the Dallas Morning News. Ratliff, who unhinged stint with the Cowboys included a run-in with owner Jerry Jones, has a home in the Dallas area.

Earlier this week, it emerged Ratliff had pushed a coach at the end of the 2014 season right before soon-to-be-fired head coach Marc Trestman made him a captain.

Now, the 34-year-old Ratliff may be out of chances with the Bears and the rest of the league.